Practice Principle Of Virtual Work (1) - Energy Theorem - Mechanics of Deformable Solids

Practice: Principle of Virtual Work

Lesson 1Energy Theorem

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8 questions

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6 sample questions

Question 1.
What does the Principle of Virtual Work state?
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Think about the balance of forces.
Question 2.
What is considered in a virtual displacement?
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Reflect on how displacement relates to work.
3Question 3.
What does the Principle of Virtual Work ensure for systems in equilibrium?
- Total work is maximum
- Total virtual work is zero
- Total internal work is zero
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Consider the balance of forces.
4Question 4.
True or False: The Principle of Virtual Work can only be used for determinate structures.
- True
- False
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Think about the types of structures we discussed.
Question 5.
A beam is subjected to two different loads at opposing ends. Determine the deflection at the midpoint using the Principle of Virtual Work. Assume all materials are linearly elastic.
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Break down the forces and apply them step-by-step.
Question 6.
Analyze a truss structure using the Principle of Virtual Work to evaluate the impact of an external load applied at a joint and derive the reactions at the supports.
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Outline the forces and remember to account for all angles.

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